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Summary of Contents for Isotech VENUS 4951 BASIC
- Page 1 User Maintenance Manual VENUS 4951 BASIC & SITE Isothermal Technology Limited, Pine Grove, Southport, Merseyside, PR9 9AG, England Telephone: +44 (0)1704 543830 Fax: +44 (0)1704 544799 Email: info@isotech.co.uk Website: www.isotech.co.uk Venus 4000 Series 02-04/17...
- Page 2 This handbook contains information that has been reproduced with the kind permission of Eurotherm. Such data is subject to the following notice. Isothermal Technology Limited Pine Grove, Southport, Merseyside, PR9 9AG, England Telephone: +44 (0)1704 543830 / Fax: +44 (0)1704 544799 Email: info@isotech.co.uk / Website: www.isotech.co.uk...
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Page 3: Table Of Contents
Contents 1 UNPACKING AND INITIAL INSPECTION ..................5 2 BEFORE YOU USE THE EQUIPMENT ....................6 3 SUMMARY OF SYMBOLS ........................7 4 ELECTRICITY SUPPLY ........................8 THE UNIT MUST BE EARTHED ....................9 EMC INFORMATION ......................... 10 CAUTIONARY NOTE ......................... 11 SAFETY WARNINGS ........................ - Page 4 14.3.1 Units ..............................23 14.4 T EMPERATURE NDICATOR ODELS ..................24 14.5 C ONNECTING EMPERATURE ENSORS ......................24 14.5.1 Platinum Resistance Thermometers, PRTs ..................24 14.5.2 Input Connections ........................... 24 14.5.3 Connecting Thermocouples ......................24 14.5.4 Setting the Input Type ........................
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Page 5: Unpacking And Initial Inspection
1 Unpacking And Initial Inspection Our Packing Department uses custom designed packaging to send out your unit, but as accidents can still happen in transit, you are advised, after unpacking the unit, to inspect it for any sign of shipping damage and confirm that your delivery is in accordance with the packing check list. If you find any damage or that part of the delivery is missing notify us or our agent and the carrier immediately. -
Page 6: Before You Use The Equipment
2 Before You Use The Equipment Please read the handbook and familiarise yourself with all warnings, hazards and safety information. Regularly inspect the equipment, accessories and electrical leads. Do not use if there is any sign of damage. Keep the equipment clean, only use a damp cloth. Do not use solvents or allows liquids to enter the case. -
Page 7: Summary Of Symbols
3 Summary of Symbols ISO3864 – Caution, read the entire manual before use IEC 417 – Caution, hot surface (risk of burn) Waste Electrical and Electronic Equipment (WEEE directive) symbol Complies with European regulations (CE mark) USB symbol Ethernet RJ45 symbol Risk of Electrical Shock l O l O l RS422 Serial Port... -
Page 8: Electricity Supply
4 Electricity Supply Before connecting to the electricity supply please familiarise yourself with the parts of the manual relevant to your model. Your unit's supply voltage requirement is specified on a label on the instrument along with the serial number. Only connect to a power supply matching the requirement stated on the equipment. -
Page 9: The Unit Must Be Earthed
The Unit Must Be Earthed This equipment is a Class 1 Appliance and must be earthed (grounded). Use the supplied power cord and plug it directly into an AC outlet with a protective earth. If using an alternative cord ensure it is of adequate rating. If fitting a plug to the cable we have supplied the cable is colour coded as follows: Colour Function... -
Page 10: Emc Information
EMC Information This product meets the requirements of the European Directive on Electromagnetic Compatibility (EMC) 89/336/EEC as amended by EC Directive 92/31/EEC and the European Low Voltage Directive 73/25/EEC, amended by 93/68/EEC. To ensure emission compliance please ensure that connecting leads are fully screened. The product meets the susceptibility requirements of EN 50082-1, criterion B. -
Page 11: Cautionary Note
Cautionary Note Operators of this equipment should be adequately trained in the handling of hot and cold items. It is important the user has been trained about the selection and use of liquids over a wide temperature range. It is expected that personnel using this equipment will be competent with the management of apparatus which may be powered or under extremes of temperature and are able to appreciate the hazards which may be associated with and the precautions to be taken with, such equipment. -
Page 12: Safety Warnings
Inserts for low temperature models may melt and cause a fire if used in high temperature models Only use Isotech inserts which are specially treated to avoid them from becoming stuck in the calibration volume Do not use powders, liquids or compounds in the insert; this may lead to the insert or... -
Page 13: Consider The Environment
9 Consider The Environment The equipment should be recycled or disposed of in a proper way; following the Waste Electrical and Electronic Equipment (WEEE) directive... -
Page 14: Introduction
10 Introduction The purpose of the Venus models is to provide an adjustable isothermal enclosure for calibration purposes. It has been designed to be rugged and easily maintained. The isothermal enclosure consists of a fixed heater block into which an insert can be placed. -
Page 15: External Standards + Basic
10.4 External Standards + Basic Here a separate indicator and calibrated sensor are used to measure the inserts temperature. With a suitable indicator such as the Isotech milliK this gives the most accurate and reliable results, depending on the indicator. -
Page 16: Mode Of Operation
11 Mode Of Operation 11.1 Metal Block Bath The thermometers under test are placed into suitable holes in the metal insert. For the ADVANCED and Site models a calibrated reference probe should be placed into the insert and the actual temperature can be read from the temperature indicator. -
Page 17: Stirred Liquid Bath
11.4 Stirred Liquid Bath The stirred liquid bath function of the Venus 4951 is well suited for odd shaped sensors which will not easily be accommodated in a metal insert. The Venus 4951 Liquid Container (part number 951-06-01) is placed into the calibration well and the container is filled with a suitable liquid, see accessory page, for the temperature range that the bath is to be used over. -
Page 18: Isotech Basic Dry Block Interface
11.6 Isotech Basic Dry block interface 1. Main supply voltage connection socket This socket allow the Mains Voltage to be applied to power up the equipment. Use only the supplied lead or a suitably specified IEC alternative. Confirm the supply voltage using the ratings label on the rear of the equipment. -
Page 19: Isotech Site Dry Block Interface
11.7 Isotech Site Dry block interface 1. Main supply voltage connection socket This socket allow the Mains Voltage to be applied to power up the equipment. Use only the supplied lead or a suitably specified IEC alternative. Confirm the supply voltage using the ratings label on the rear of the equipment. -
Page 20: Specification
12 Specification Model Parameter Venus 4951 Basic/Site Temperature Range -35°C to 140°C Stability Blackbody ±0.3°C Surface Sensor ±0.5°C ITS-90 Cells ±0.0005°C Display Resolution 0.01°C from -19.99 to 99.99°C then 0.1°C: 0.01°C over PC Interface Uniformity – between Wells Dry Block <0.008°C... -
Page 21: Best Performance Graphs
13 Best Performance Graphs 13.1 Heat Up / Cool Down 13.2 Sigma Uncertainties Best uncertainty – using Basic model with a TTI-2 and a 935-14-82 calibrated system Site version uncertainty – Site model using built in indicator at the time of calibration... -
Page 22: Operating The Model
14 Operating The Model 14.1 Front Panel Layout 14.1.1 The Temperature Controller The controller has a dual display, the upper display indicates the nominal block temperature, and the lower display indicates the desired temperature or setpoint. 14.1.2 Altering the Setpoint To change the setpoint of the controller simply use the UP and DOWN keys to raise and lower the setpoint to the required value. -
Page 23: Instrument Address
14.2.2 Instrument Address The controller has a configurable "address" which is used for PC communications. Each instrument has an address; this allows several instruments to be connected in parallel on the same communications bus. The default value is 1. This address would only need to be changed if more than one Dry Block is connected to the same PC port. -
Page 24: The Temperature Indicator: Site Models Only
14.5 Connecting Temperature Sensors 14.5.1 Platinum Resistance Thermometers, PRTs Set the input type to suit from either the front panel of the Isotech Config Software utility. PRTs can be connected to Inputs P1 and P2. When connecting a PRT ensure the corresponding thermocouple input is not used, that is if connecting a PRT to Input P1 then Input T1 must not be used, is if connecting a PRT to Input P2 then Input T2 must not be used. -
Page 25: Enabling/Disabling Custom Calibration
The use of User calibration can make a significant difference to the accuracy of the instrument, and this REM beacon provides a clear and continuous indication of the calibration status. Isotech will configure and set user calibration when the Dry Block is ordered with a temperature sensor. -
Page 26: Monitoring The Indicator Status
The indicator can be configured with up to five custom calibration points; the points contain "data pairs". First the temperature (point) and secondly the Error (offset) at this temperature point. Isotech Dry Block calibration certificates will show the values to suit a particular sensor. These values can be inspected, and modified with the following procedure,... -
Page 27: Calibration Data Example
15 Calibration Data Example A maximum of five points may be entered, shown as Pnt 1 to Pnt 5 for the temperature point and Ofs 1 to Ofs 5 for the offset values. The Pnt values must be entered in ascending order. Set a Pnt to a value lower than the previous point to disable it. -
Page 29: Sing The Urrent Oop Nterface With The Ite Model
15.2 Using the Current Loop Interface 935-06-161 with the Site model Connect the Transmitter to the equipment as shown in the above image. Note: do not connect 935-06-161 via the PRT socket. The Current Loop interface has built in resistance and does not require the internal resistance of the equipment. Connect via the Thermocouple socket only. -
Page 30: Testing Thermal Switches
15.3 Testing Thermal Switches The Site Model Venus’s include a switch test facility which is used in conjunction with the supplied Cal Notepad Software. See Cal Note Pad manual or instructions on how to use this. 15.4 Procedure for the reversal of the polarity for the Switch Contact feature 1. -
Page 31: Using The Pc Interface
Note: The RS 422 standard specifies a maximum lead length of 1200M (4000ft). A true RS422 port will be required to realise such lead lengths. The Isotech conversion leads are suitable for maximum combined lead lengths of 10M that is adequate for most applications. -
Page 32: Cal Notepad
17 Cal Notepad Cal Notepad can be used can be used to log and display values from the Dry Blocks and an optional temperature indicator such as the milliK or TTI-10. The software requires Windows 9X, XP, a minimum of 5Mb of free hard drive space and free serial ports for the instruments to be connected. -
Page 33: Isotech I-Cal Easy Log
This application allows logging of data from the 4000 series model. Additionally if a license is purchased it allows for fully automatic calibration including certificate printing and the calculation of coefficients. Refer to the Isotech I-Cal EASY handbook and help system for more details More information can be downloaded from the Isotech website http://www.isotech.co.uk/downloads... -
Page 34: Diagnostic Alarms
E2.Er EEPROM error Return to Isotech for repair EE.Er Non-vol memory error Note the error and contact Isotech. E.Lin Invalid input type. This refers to Go to the INPUT list in configuration custom linearisation which may not level and set a valid thermocouple or... -
Page 35: Appendix 1: Indicator Configuration (Reference Only)
19 Appendix 1: Indicator Configuration (Reference Only) Config.INST Name Description Value unit Instrument Units `C (0) dEcP Decimal Places in Display NN.NN CtrL Control Type PID (0) Control Action REV (0) COOL Cooling Type LIN (0) PwrF Power Feedback Enable OFF (0) Pdtr Manual/Auto Transfer PD... - Page 36 Config.AL Name Description Value AL_1 Alarm 1 Type OFF (0) Ltch1 Alarm 1 Latching NO (0) AL_2 Alarm 2 Type OFF (0) Ltch2 Alarm 2 Latching NO (0) AL_3 Alarm 3 Type OFF (0) Ltch3 Alarm 3 Latching NO (0) AL_4 Alarm 4 Type OFF (0)
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Page 37: Accessories
20 Accessories Option 1 Standard Dry Block Insert 951-02-15 2 x 4.5mm, 2 x 6.4mm, 1 x 8mm, 1 x 9.5mm x 157mm deep Option 2 & 3 Liquid Container Kit 951-06-01 Liquid Container 951-02-21 PTFE Collar 951-02-23 Magnetic Followers 932-12-55 Sealing Collar (O Ring) 932-12-57...
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